Triumph Thunderbird Commander Handbook page 91

Drive Belt Tension Specification
Motorcycle on 5.5 to 7.0 mm
sidestand (0.20 to 0.27 in)
Motorcycle on support 7.5 to 9.0 mm
stand T3880803 (0.30 to 0.35 in)
Drive belt tension is measured by applying a
4.5 kilogram-force (kgf) (10 pound-force (lbf))
load to the plunger on service tool T3880126,
once it has been positioned to the lower run
of drive belt; this load then deflects the belt.
The belt deflection can then be measured
using a scale on the tool.
1
1. 4.5 kilogram-force (10 pound-force)
applied to belt
2. Amount of deflection
Maintenance and Adjustment
Measure the drive belt tension as follows:
Note:
• During the following procedure the
exhaust is shown removed for
clarity, however it is not necessary
to remove the exhaust to check or
adjust the drive belt tension.
• Slide the small O-ring on tool T3880126
along the tool to the zero position on the
load scale.
hc
2
1. Load scale
2. O-ring
3. Zero position
1
3
2
91